摘要
目的探讨Raypex 5根尖定位仪与PropexⅡ根管电测仪测定根管工作长度的准确性。方法选取唐山市协和医院牙体牙髓科2014年1月~2015年2月行根管治疗的患者220例,共获得患牙252颗、根管384个,用随机数字表法将其分为两组,每组各192个根管,分别用Raypex 5根尖定位仪与PropexⅡ根管电测仪对根管工作长度进行测量,记录相应数据,依据所测长度将扩大针插进根管,进行牙齿X线片拍摄,并使用Cliniview 5.0系统对根尖与锉尖之间的位置关系进行观察分析,比较2种仪器的准确率及根管填充效果。结果两组根管填充情况比较,差异无统计学意义（P〉0.05）;PropexⅡ根管电测仪对工作根管长度测量的准确率（93.23%）与Raypex5根尖定位仪（92.19%）比较,差异无统计学意义（P〉0.05）。结论 Raypex 5根尖定位仪与PropexⅡ根管电测仪都能够对根管工作长度进行准确的测定,均具有较高的临床价值。
Objective To explore the accuracy of Raypex 5 root tip locator and Propex Ⅱ root canal electrical measuring instrument in the root canal working length measurement. Methods 220 cases of patients treated with root canal therapy from January 2014 to February 2015 in Dapartment of Endodontics, Tangshan Union Medical College Hospital were selected, including 252 offending teeth and 384 root canals. They were divided into two groups with random number table method, with 192 root canals in each group. Raypex 5 root tip locator and Propex Ⅱ root canal electrical measuring instrument were used in root canal working length measurement. The corresponding data were recorded. According to the measured length, the needle was expanded into the root canal and dental X-ray was taken. The Cliniview5.0 system was used to observe and analysis the relationship between the location of root tip and the tip of file, the accuracy and root canal filling effect of two instruments were compared. Results There was no statistical significance of root canal filling situation between two groups（P〈0.05）; There was no statistical significance of root canal working length measurement accuracy between Propex Ⅱ root canal electrical measuring instrument（93.23%） and Raypex 5root tip locator（92.19%）（P〈0.05）. Conclusion Raypex 5 root tip locator and Propex Ⅱ root canal electrical measuring instrument are able to measure the root canal working length accuratel, which have high clinical value.
出处
《中国医药导报》
CAS
2015年第32期112-114,119,共4页
China Medical Herald
基金
河北省唐山市科学技术研究与发展计划项目(12130227b)
